Catalytic properties of a substance may be best defined as a
phenomenon of
1 Absorption
2 Chemisorption
3 Adsorption
4 None of these
Which variety of glass is heat resistant? 1 Hard glass 2 Flint glass 3 Pyrex glass 4 Bottle glass
What is a nuclear triad?
The Purest form of water can be obtained from:- I) a deep tube well II) a running stream III) a hot water spring IV) a heavy shower of rain
Names of some plants and trees that sleep during the day
Study Of Life in outer space is known As
Which of the following is used as a filler in rubber tyres? 1 Graphite 2 Coal 3 Coke 4 Corbon black
The two elements that are frequently used for making transistors are 1 Boron and aluminium 2 Silicon and germanium 3 Iridium and tungsten 4 Niobium and columbium
Bagasse, a by-product of sugar manufacturing industry, is used for the production of 1 Nylon 2 Glass 3 Paper 4 Alcohol
Which scientist made detailed study on novae?
Catalytic properties of a substance may be best defined as a phenomenon of 1 Absorption 2 Chemisorption 3 Adsorption 4 None of these
In which year was the meteorology department founded?
Which of the following reactions is used for increasing the number of carbon atoms in a chain? 1 Substitution reaction 2 Wurtz reaction 3 Friedel – Crafts reaction 4 Cannizzaro’s reaction